Not a bad idea at all but absolutely not doable here.

We have the DHF which is a non-advertising entity with no leadership or strategy funding projects based around pre-existing reputation.
Those that have the reputation to make a "Hive ventures" of sorts wont, as its a lot of work and responsibility and non-dev work on Hive isnt paid anything.
Those that might want to do it for free dont have the reputation for the community to trust them with the funds and running of it.

So no, this can not work here. Unfortunately.